/** Drop order = reverse of schema create dependency order. */
export const TABLES = [
  'companyuser',
  'syncpos',
  'companysetting',
  'posterminalcategory',
  'posterminal',
  'numbers',
  'ledger',
  'manifestarticle',
  'manifest',
  'price',
  'articletext',
  'categorytext',
  'categorypic',
  'categoryarticle',
  'optionslistarticle',
  'articlelistarticle',
  'brandpic',
  'articlepic',
  'articleean',
  'articlehistory',
  'entityhistory',
  'entityaddress',
  'entitycontact',
  'article',
  'brand',
  'articlelist',
  'optionslist',
  'unittext',
  'unit',
  'entity',
  'customergroup',
  'google_auth',
  'company',
  'pic',
  'category',
  'tax',
  'language',
  'meta',
];

export const PROCEDURES = [
  'getnextnumberwithprefixandpadding',
  'peeknextnumberwithprefixandpadding',
];

export const VIEWS = ['v_entity_company_number'];

/** Drop before tables — breaks company ↔ customergroup cycle for purge. */
export const CONSTRAINTS = [
  `IF EXISTS (SELECT 1 FROM sys.foreign_keys WHERE name = N'FK_company_poscustomergroup')
    ALTER TABLE company DROP CONSTRAINT FK_company_poscustomergroup;`,
];

export function buildPurgeSql() {
  const drops = [
    ...PROCEDURES.map(
      (name) =>
        `IF OBJECT_ID(N'dbo.${name}', N'P') IS NOT NULL DROP PROCEDURE dbo.[${name}];`,
    ),
    ...VIEWS.map(
      (name) =>
        `IF OBJECT_ID(N'dbo.${name}', N'V') IS NOT NULL DROP VIEW dbo.[${name}];`,
    ),
    ...CONSTRAINTS,
    ...TABLES.map(
      (name) =>
        `IF OBJECT_ID(N'dbo.${name}', N'U') IS NOT NULL DROP TABLE dbo.[${name}];`,
    ),
  ];
  return drops.join('\n');
}